Cosmetic composition for blocking fine dust

ABSTRACT

The present disclosure relates to a cosmetic composition for blocking fine dust. The composition according to the present disclosure can fundamentally prevent problems due to fine dust by reducing the attachment rate of fine dust attached to skin.

TECHNICAL FIELD

The present disclosure relates to a cosmetic composition for blockingfine dusts.

BACKGROUND ART

In modern societies, fine dusts including automobile emissions, yellowdust flying through industrial zones in eastern China, or externalcontaminants may cause skin aging and skin problems in urban areas andindustrial complexes.

Since the size of the fine dust is mostly 10 μm or less, it is muchsmaller than general dust (average size of 50 μm or more) (USEnvironmental Protection Agency (EPA)). According to the research ofNational Institute of Environmental Research (2006), it has beeninvestigated that major components of the fine dusts in the metropolitanarea are sulfates, nitrates, and secondary products from China. Finedusts penetrate deep into the alveoli of humans and accumulates in thebronchus and lungs, which is a direct cause of various respiratorydiseases, and it may decrease the body's immune function, and causeasthma and respiratory difficulty, and increase the concentration ofheavy metals in the rain or snow due to long-distance travel. In skin,as the size of the fine dust is small, it can penetrate deep into poreseasily. If the penetrated fine dusts are not removed cleanly, it maycause inflammation and trouble in skin, and therefore, it is importantto block the fine dusts so that it cannot penetrate the skin.

As conventional technologies for blocking fine dusts, technologies ofblocking fine dusts with the negative charge in the formulation using arepulsive force of the same charge, or preventing fine dusts frompenetrating pores by forming a network on the skin surface aredisclosed. However, there are problems in that in fact, the fine dustscan be not only negatively charge but also positively charge, and theeffect of blocking fine dusts by the repulsive force of a specificcharge is very insignificant, and a film-forming polymer cannotfundamentally prevent the fine dusts from attaching to the skin surface.

The fine dusts can be removed to some extent by cleansing, but the finerthe stronger the adsorption power, so it is impossible to remove thefine dusts deeply penetrated into pores with normal cleansing, andtherefore, there is a need for a technology for fundamentally blockingthe fine dusts from attaching to skin.

DISCLOSURE Technical Problem

A problem to be solved by the present disclosure is to provide acomposition for blocking fine dusts which prevent problems due to finedusts by reducing the amount of fine dusts attached to skin.

Technical Solution

To solve the problem, the present disclosure provides a composition,preferably, cosmetic composition, for blocking fine dusts comprising acompound containing an N-heterocycle as an active ingredient.

Conventionally, as a solution for fine dusts, a method for removing finedusts attached to skin by cleansing, a method for blocking fine dustsusing a negative charge repulsive force, a method for forming a networkon the skin surface, and the like were used. However, the method forcleansing fine dusts attached to skin may cause a problem to skin as thefine dusts are already attached to skin, and be difficult to cleansewhen they are already adsorbed to skin, as very fine dusts have strongabsorption. In addition, the method for blocking fine dusts using anegative charge repulsive force has a problem in that the actual effectof blocking fine dusts is insignificant, as the fine dusts show not onlynegative charge but also positive charge, and the method for forming anetwork on the skin surface has a problem in that it is impossible tofundamentally prevent fine dusts from attaching on the skin surface.Accordingly, the present inventors have researched a component which iscomprised in a cosmetic composition and blocks skin attachment of finedusts themselves, and have experimentally confirmed that when a compoundcontaining an N-heterocycle is comprised, the skin attachment of finedusts can be significantly reduced, thereby completing the presentdisclosure.

The term used herein, “fine dust” means dust in a fine size of 10 μm orless. The dust is not limited to a specific component, and includes allthe materials commonly called dust.

The term used herein, “blocking fine dust” means prevent the fine dustsfrom attaching to skin, and extensively, is a meaning includingeliminating fine dusts attached to skin.

The present inventors have experimentally confirmed that the compositioncomprising a compound containing an N-heterocycle as an activeingredient prevents fine dusts from attaching to skin.

The term used herein, “compound comprising an N-heterocycle” means acompound containing a heterocycle comprising a nitrogen atom as aheteroatom.

Preferably, the N-heterocycle may be a saturated or unsaturated 5, 6 or9-membered N-heterocycle. The examples of the 5-membered N-heterocycleinclude pyrrolidine, pyrroline, pyrrole, pyrazolidine, imidazolidine,pyrazoline, imidazoline, pyrazole, imidazole, triazole, tetrazole,oxazole, thiazole, oxadiazole, thiadiazole, and the like, but notlimited thereto, and accordingly, the 5-membered N-heterocycle may beone or more selected from the group consisting of pyrrolidine,pyrroline, pyrrole, pyrazolidine, imidazolidine, pyrazoline,imidazoline, pyrazole, imidazole, triazole, tetrazole, oxazole,thiazole, oxadiazole, and thiadiazole. The examples of the 6-memberedN-heterocycle include piperidine, piperazine, pyridine, pyridazine,pyrimidine, pyrazine, triazine, oxazine, thiomorpholine, thiazine,cytosine, thymine, uracil, thiomorpholine dioxide, and the like, but notlimited thereto, and accordingly, the 6-membered N-heterocycle may beone or more selected from the group consisting of piperidine,piperazine, pyridine, pyridazine, pyrimidine, pyrazine, triazine,oxazine, thiomorpholine, thiazine, cytosine, thymine, uracil andthiomorpholine dioxide.

In addition, in one preferable example of the present disclosure, thepresent inventors have experimentally confirmed that the compositioncomprising a compound containing a 9-membered N-heterocycle in which a5-membered N-heterocycle binds with a benzene ring as an activeingredient prevents fine dusts from attaching to skin.

The examples of the 9-membered N-heterocycle include indoline, indole,isoindole, indazole, benzimidazole, azaindole, and the like, but notlimited thereto, and accordingly, the 9-membered N-heterocycle may beone or more selected from the group consisting of indoline, indole,isoindole, indazole, benzimidazole and azaindole.

More preferably, to achieve the object of the present disclosure, theN-heterocycle may be a 6-membered N-heterocycle or 9-memberedN-heterocycle, and much more preferably, may be one or more selectedfrom the group consisting of triazine, benzotriazole and benzimidazole.

Most preferably, the compound comprising an N-heterocycle may bebis-ethylhexyloxyphenol methoxyphenyl triazine, melamine(1,3,5-triazine-2,4,6-triamine), methylene bis-benzotriazolyltetramethylbutylphenol, ethylhexyl triazone, phenyl benzimidazolesulfonic acid, diethylhexyl butamido triazone, disodium phenyldibenzimidazole tetrasulfonate, drometrizole trisiloxane, trisbiphenyltriazine. The present inventors have prepared a cosmetic compositioncomprising the above materials, and have experimentally confirmed thatit can significantly reduce attachment of fine dusts to skin.

The compound comprising an N-heterocycle can block fine dusts byneutralizing a fine charge present on a surface of skin or an object,and is not limited to this theory.

In addition, the compound comprising an N-heterocycle has an effect ofpreventing or blocking attachment of heavy metals.

Preferably, the molecular weight of the compound comprising anN-heterocycle may be 100 to 1,000, more preferably 200 to 800, much morepreferably 300 to 700.

Herein, the compound comprising an N-heterocycle may be comprised in anamount of 0.1 to 10% by weight, based on the total weight of thecomposition, and it may be comprised in an amount of preferably, 0.5 to8% by weight, more preferably, 1 to 5% by weight. When it is comprisedover 10% by weight, the feeling of the formulation may be sticky, oily,and greasy, and the stability of the formulation may be reduced.

Furthermore, the cosmetic composition for blocking fine dusts accordingto the present disclosure may be prepared by suitably mixing componentsmixed to common cosmetics such as a moisturizer, a thickener, powder,alcohol, a natural polymer, a synthetic polymer, a saccharide, anantioxidant, buffer, various kinds of extracts, a stabilizer, apreservative, a coloring, or a flavoring, in addition to the activeingredient, according to common methods. The moisturizer may beglycerin, sorbitol, butylene glycol, dipropylene glycol, propyleneglycol, pentylene glycol, propanediol, 1,2-hexanediol, octanediol, ornatural product-derived extract, or the like.

It comprises other residual amounts of water.

In addition, the cosmetic composition for blocking fine dusts accordingto the present disclosure may be prepared in a formulation selected fromthe group consisting of solution, ointment for external application,cream, foam, nutritional cosmetic water, soft cosmetic water, softwater, milky lotion, makeup base, essence, liquid cleanser, bathpreparation, sun screen cream, sun oil, suspension, emulsion, paste,gel, lotion, powder, oil, powder foundation, emulsion foundation, waxfoundation, patch, mist and spray, and the like, but not limitedthereto.

In one embodiment of the present disclosure, the compound comprising anN-heterocycle may be comprised in an oil-dispersed form. This means aform in which oils are added for dissolution of the correspondingcompound according to common characteristics of the compound comprisingan N-heterocycle.

In this case, the cosmetic composition of the present disclosure mayhave an oil formulation, and for dissolution of the compound comprisingan N-heterocycle, it may further comprise a polar oil and/or siliconoil, and for example, it includes dicaprylyl carbonate, caprlic/caprictriglyceride, isopropyl palmitate, C12-15 alkyl benzoate, propyl heptylcaprylate, coco-caprylate/caprate, dibutyl adipate, triethyl hexanoin,phenyl trimethicone, cyclopentasiloxane, cyclohexasiloxane, caprylyltrimethicone, and the like, but not limited thereto. In other words, thecosmetic composition according to the present disclosure may be preparedby dissolving the compound comprising an N-heterocycle in an oil (or oilphase).

In other embodiment of the present disclosure, the compound comprisingan N-heterocycle may be comprised in a water-dispersed form.

Commonly, the compound comprising an N-heterocycle is oil-soluble andtherefore it should be dispersed by adding oils, but the presentdisclosure allows the compound comprising an N-heterocycle to bedispersed in water without adding oils, and provides a cosmeticcomposition which comprises an N-heterocycle and is also a hydrationformulation.

The hydration formulation may be a formulation selected from the groupconsisting of water gel, solution, foam, cosmetic water, milky lotion,suspension, emulsion, paste, lotion, patch, mist and spray formulations,but not limited thereto.

As above, the compound comprising an N-heterocycle may be in a form withenhanced solubility or dispersibility for water as mixed and treatedwith other compounds. When the dispersibility for water is excellent, itmay be usefully used for a cosmetic composition comprising a largeamount of water, and it is possible to minimize or eliminate the amountof oils in the composition.

As a water-dispersed form of the compound comprising an N-heterocycle,it is also possible to purchase and use a commercially available rawmaterial, and for example, it is possible to purchase and use a rawmaterial of BASF corporation (brand name: Tinosorb® S Aqua).

Advantageous Effects

The composition according to the present disclosure can fundamentallyprevent problems due to fine dusts by lowering the attachment rate offine dusts attached to skin.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Hereinafter, the present disclosure will be described in detail byexamples to specifically described the present disclosure. However, theexamples according to the present disclosure may be modified intovarious other forms, and the scope of the present disclosure should notbe construed to be limited by the examples described below. The examplesof the present disclosure are provided to illustrate the presentdisclosure more completely.

Experimental Example 1: Preparation of Example 1 and ComparativeExamples 1-3 and Estimation of Fine Dust Attachment

The present inventors prepared essences having the composition of thefollowing Table 1 by a common method, for an experiment of estimation offine dust attachment.

TABLE 1 Comparative Comparative Comparative Example 1 example 1 example2 example 3 Content(% Content(% Content(% Content(% Raw material byweight) by weight) by weight) by weight) Purified water To 100 To 100 To100 To 100 Glycerin 3 3 3 3 Butylene glycol 6 6 6 6 1,2-hexanediol 1.51.5 1.5 1.5 Stearic acid 0.3 0.3 0.3 0.3 Cetearyl 0.2 0.2 0.2 0.2glucoside Cetearyl alcohol 0.8 0.8 0.8 0.8 Methyl glucose 1 1 1 1sesquistearate Glyceryl 0.5 0.5 0.5 0.5 stearate Phenyl 4 4 4 4trimethicone Cyclo- 4 4 4 4 pentasiloxane Cyclo- 2 2 2 2 hexasiloxaneBis-ethylhexyl- 2.0 — — — oxyphenol methoxyphenyl triazine⁽¹⁾ Arachidyl— 2.0 — — glucoside Isostearyl — — 2.0 — isostearate Flavoring 0.1 0.10.1 0.1 ⁽¹⁾Tinosorb ® S, BASF

1) Method for Estimating Fine Dust Attachment

i) After applying artificial sebum of 1.3 mg/cm² on a PMMA plate, it wasdried for 15 minutes.

ii) After applying a test formulation on the dried artificial sebum inthe same amount, it was dried for 15 minutes (Noting was applied on thecontrol group).

iii) The PMMA plate was attached on the internal top of the self-madechamber, and a pan on the bottom of the chamber was operated for 5minutes, to expose 0.5 g substitutive fine dusts (brand name LM-YG0510,comprising strontium carbonate, alumina, europium oxide, and dysprosiumoxide).

iv) Using a magnifying glass (Aphrodite-3, 50×), UV images werephotographed (measuring 4 points per plate).

v) Using ImagePro Plus, the area of dust attachment was measured.

vi) The fine dust attachment rate was calculated by comparing the samplewith the result of 3 times of experiments (Setting the fine dustattachment rate of the control group to 100).

2) Result

As a result, as shown in Table 2, it was confirmed that Example 1 showedthe relative attachment rate of less than ⅓ compared to the controlgroup, and it has an excellent effect of prevent fine dust attachment asmuch as showing the relative attachment rate of less than ½ compared tothe Comparative examples 1-3.

TABLE 2 Exam- Comparative Comparative Comparative Control ple 1 example1 example 2 example 3 group Fine dust 28.97 88.31 89.85 63.90 100attachment rate (%)

Experimental Example 2: Preparation of Example 2 and ComparativeExamples 4-8 and Estimation of Fine Dust Attachment

The present inventors prepared essences having the composition of thefollowing Table 3 by a common method, for an experiment of estimation offine dust attachment.

TABLE 3 Comparative Comparative Comparative Comparative ComparativeExample 2 example 4 example 5 example 6 example 7 example 8 Content(Content(% Content(% Content(% Content(% Content(% Raw material % byweight) by weight) by weight) by weight) by weight) by weight) Purifiedwater To 100 To 100 To 100 To 100 To 100 To 100 Glycerin 3 3 3 3 3 3Butylene glycol 6 6 6 6 6 6 1,2-hexanediol 1.5 1.5 1.5 1.5 1.5 1.5Stearic acid 0.3 0.3 0.3 0.3 0.3 0.3 Cetearyl glucoside 0.2 0.2 0.2 0.20.2 0.2 Cetearyl alcohol 0.8 0.8 0.8 0.8 0.8 0.8 Bis-ethylhexyloxyphenol0.5 — — — — — methoxyphenyl triazine water dispersion⁽²⁾ Amodimethicone— 0.5 — — — — Polyquaternium-10 — — 0.5 Polymethylmethacrylate — — — 0.5— — Aminomethylpropanol — — — — 0.5 — Flavoring 0.1 0.1 0.1 0.1 0.1 0.1⁽²⁾Tinosorb ® S Aqua, BASF

As a result, as shown in Table 4, it was confirmed that Example 2 showedthe relative attachment rate of about ¼ compared to the control group,and it has an excellent effect of prevent fine dust attachment as muchas showing the relative attachment rate of less than ⅓ compared to theComparative examples 4-8.

In addition, as the result of confirming the effect of preventing finedust attachment of other compounds comprised in thebis-ethylhexyloxyphenol methoxyphenyl triazine water dispersion(Tinosorb® S Aqua, BASF) of Example 2 through Comparative examples 6 and7, it was confirmed that other compounds other thanbis-ethylhexyloxyphenol methoxyphenyl triazine had no effect ofpreventing fine dust attachment.

TABLE 4 Com- Com- Com- Com- Com- Ex- par- par- par- par- par- am- ativeative ative ative ative ple exam- exam- exam- exam- exam- Control 2 ple4 ple 5 ple 6 ple 7 ple 8 group Fine dust 25.21 89.66 91.10 92.52 80.7777.68 100 attachment rate (%)

Experimental Example 3: Preparation of Example 3 and Comparative Example9 and Estimation of Fine Dust Attachment

The present inventors prepared water-gel formulations of Example 3 andComparative example 9 by the content shown in the following Table 5, andprogressed the estimation of fine dust attachment.

TABLE 5 Comparative Example 3 example 9 Content(% Content(% Raw materialINCI name by weight) by weight) Purified water To 100 To 100 Glycerin 44 PEG-5 2 2 1,2-hexanediol 1 1 Ammonium 0.4 0.4acryloyldimethyltaurate/VP copolymer melamine 0.5 —

As a result, as shown in Table 6, it was confirmed that Comparativeexample 9 had no effect of preventing fine dust attachment compared tothe control group in which nothing was applied, and rather fine dustattached better, while Example 3 showed the relative attachment rate ofless than 85% compared to the control group and that of less than ½compared to the Comparative example 9, and thereby an excellent effectof preventing fine dust attachment of melamine(1,3,5-triazine-2,4,6-triamine) characteristically contained in Example3 was confirmed.

TABLE 6 Comparative Control Example 3 example 9 group Fine dustattachment 82.1 178.5 100 rate (%)

Experimental Example 4: Preparation of Examples 4-6 and ComparativeExamples 10-12 and Estimation of Fine Dust Attachment

The present inventors prepared emulsion formulations of Examples 4-6 andComparative examples 10-12 by the content shown in the following Table7, and progressed the estimation of fine dust attachment.

TABLE 7 Comparative Comparative Comparative Example Example Exampleexample example example 4 5 6 10 11 12 Raw material INCI Content(Content( Content( Content(% Content(% Content(% name % by % by % by byweight) by weight) by weight) weight) weight) weight) Hydrogenated 3 3 33 3 3 polydecene Cyclopentasiloxane 5 5 5 5 5 5 Cetearyl alcohol 1.5 1.51.5 1.5 1.5 1.5 Ceteareth-6 Olivate 1.2 1.2 1.2 1.2 1.2 1.2 Shea butter3 3 3 3 3 3 Isostearate 1 1 1 1 1 1 Phenethylbenzoate 2 2 2 2 2 2Purified water To 100 To 100 To 100 To 100 To 100 To 100 Xanthan gum 0.20.2 0.2 0.2 0.2 0.2 Acrylate/C10-30 0.02 0.02 0.02 0.02 0.02 0.02 alkylacrylate crosspolymer Hydrogenated 0.5 0.5 0.5 0.5 0.5 0.5 lecithinTrisodium EDTA 0.02 0.02 0.02 0.02 0.02 0.02 Pantenol 1 1 1 1 1 1Glycerin 5 5 5 5 5 5 Butylene glycol 3 3 3 3 3 3 1,2-hexanediol 1 1 1 11 1 Tromethamine 0.02 0.02 0.02 0.02 0.02 0.02 Flavoring 0.12 0.12 0.120.12 0.12 0.12 Methylene Bis- 4 — — — — — Benzotriazolyl tetramethylbutylphenol Ethylhexyl triazone — 2 — — — — Phenylbenzimidazole — — 2 —— — sulfonic acid Ethylhexylmethoxy — — — — 6 — Cinnamate Ethyl hexylSalicylate — — — — — 4.5

As a result, as shown in Table 8, it was confirmed that even Comparativeexamples 10-12 had a slight effect of preventing fine dust attachmentcompared to the control group in which nothing was applied, but Example4, Example 5 and Example 6 showed the relative attachment rate of lessthan ⅓ compared to the control group, about ⅓ of the control group, andless than ½ compared to the control group, respectively, and thereby, anexcellent effect of preventing fine dust attachment of MethyleneBis-Benzotriazolyl tetramethyl butylphenol, ethylhexyl triazone, andphenylbenzimidazole sulfonic acid characteristically contained inExamples 4, 5 and 6, respectively.

TABLE 8 Ex- Ex- Ex- Com- Com- Com- am- am- am- parative parativeparative ple ple ple example example example Control 4 5 6 10 11 12group Fine dust 31.43 34.45 45.21 87.23 79.63 85.21 100 attachment rate(%)

Methylene Bis-Benzotriazolyl tetramethyl butylphenol havingbenzotriazole, ethylhexyl triazone having triazine, andphenylbenzimidazole sulfonic acid having benzimidazole, which areN-heterocyclic structures, showed an excellent effect of reducing finedust attachment compared to other compounds.

Experimental Example 5: Preparation of Examples 7-10 and ComparativeExamples 13-15 and Estimation of Fine Dust Attachment

The present inventors prepared cream formulations of Examples 7-10 andComparative examples 13-15 by the content shown in the following Table9, and progressed the estimation of fine dust attachment.

TABLE 9 Comparative Comparative Comparative Example Example ExampleExample example example example 7 8 9 10 13 14 15 Raw material Content(Content( Content( Content( Content(% Content(% Content(% INCI name % by% by % by % by by weight) by weight) by weight) weight) weight) weight)weight) Cetearyl 2 2 2 2 2 2 2 alcohol Beeswax 2 2 2 2 2 2 2 Glyceryl 11 1 1 1 1 1 stearate PEG-100 1 1 1 1 1 1 1 stearate Sucrose 2 2 2 2 2 22 polystearate Triethylhexanoin 2 2 2 2 2 2 2 Dimethicone 5 5 5 5 5 5 5Caprylyl 5 5 5 5 5 5 5 trimethicone Purified water To 100 To 100 To 100To 100 To 100 To 100 To 100 Acrylate/C10- 0.1 0.1 0.1 0.1 0.1 0.1 0.1 30alkyl acrylate crosspolymer Xanthan gum 0.1 0.1 0.1 0.1 0.1 0.1 0.1Carbomer 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Propandiol 3 3 3 3 3 3 3 Glycerin 55 5 5 5 5 5 Butylene glycol 6 6 6 6 6 6 6 1,2-hexandiol 1 1 1 1 1 1 1Tromethamine 0.08 0.08 0.08 0.08 0.08 0.08 0.08 Flavoring 0.1 0.12 0.120.12 0.12 0.12 0.12 Diethylhexyl 3 — — — — — — butamido triazoneDisodium — 3 — — — — — phenyl dibenzimidazole tetrasulfonateDrometrizole — — 3 — — — trisiloxane Trisbiphenyl — — — 3 — — — triazineEthylhexylmethoxy — — — — — 6 — cinnamate Ethylhexyl — — — — — — 4.5salicylate

As a result, as shown in Table 10, it was confirmed that evenComparative examples 13-15 had few effect of preventing fine dustattachment compared to the control group in which nothing was applied,but Examples 7-10 showed the relative attachment rate of less than ½compared to the control group, respectively, and thereby, an excellenteffect of preventing fine dust attachment of Diethylhexyl butamidotriazone, disodium phenyl dibenzimidazole tetrasulfonate, andtrisbiphenyl triazine characteristically contained in Examples 7-10,respectively.

TABLE 10 Com- Com- Com- par- par- Ex- Ex- Ex- Ex- par- ative ative am-am- am- am- ative exam- exam- ple ple ple ple example ple ple Control 78 9 10 13 14 15 group Fine dust 42.55 39.69 45.81 40.07 98.12 91.4588.87 100 attachment rate (%)

Diethylhexyl butamido triazone having triazine, disodium phenyldibenzimidazole tetrasulfonate having benzimidazole, and trisbiphenyltriazine having benzotriazole, which are N-heterocyclic structures,showed an excellent effect of reducing fine dust attachment compared toother compounds.

1. A cosmetic composition for blocking fine dusts comprising a compoundcontaining an N-heterocycle as an active ingredient.
 2. The cosmeticcomposition according to claim 1, wherein the N-heterocycle is asaturated or unsaturated 5, 6 or 9-membered N-heterocycle.
 3. Thecosmetic composition according to claim 2, wherein the 5-memberedN-heterocycle is one or more selected from the group consisting ofpyrrolidine, pyrroline, pyrrole, pyrazolidine, imidazolidine,pyrazoline, imidazoline, pyrazole, imidazole, triazole, tetrazole,oxazole, thiazole, oxadiazole, and thiadiazole.
 4. The cosmeticcomposition according to claim 2, wherein the 6-membered N-heterocycleis one or more selected from the group consisting of piperidine,piperazine, pyridine, pyridazine, pyrimidine, pyrazine, triazine,oxazine, thiomorpholine, thiazine, cytosine, thymine, uracil andthiomorpholine dioxide.
 5. The cosmetic composition according to claim2, wherein the 9-membered N-heterocycle is one or more selected from thegroup consisting of indoline, indole, isoindole, indazole, benzimidazoleand azaindole.
 6. The cosmetic composition according to claim 1, whereinthe N-heterocycle is one or more selected from the group consisting oftriazine, benzotriazole and benzimidazole.
 7. The cosmetic compositionaccording to claim 1, wherein the compound comprising an N-heterocycleis comprised in a water-dispersed form.
 8. The cosmetic compositionaccording to claim 7, wherein the cosmetic composition does not comprisean oil component.
 9. The cosmetic composition according to claim 7,wherein the cosmetic composition is a hydration formulation.
 10. Thecosmetic composition according to claim 9, wherein the hydrationformulation is a formulation selected from the group consisting of watergel, solution, foam, cosmetic water, milky lotion, suspension, emulsion,paste, lotion, patch, mist and spray formulations.
 11. The cosmeticcomposition according to claim 1, wherein the molecular weight of thecompound comprising an N-heterocycle is 100 to 1,000.
 12. The cosmeticcomposition according to claim 1, wherein the compound comprising anN-heterocycle is comprised in an amount of 0.1 to 10% by weight based onthe total weight of the composition.
 13. A cosmetic composition forblocking fine dusts, comprising a fine dust blocking agent consisting ofa compound containing an N-heterocycle, as an active ingredient.
 14. Amethod for blocking fine dusts by applying a compound containing anN-heterocycle into skin.
 15. The method according to claim 14, whereinthe compound comprising an N-heterocycle is comprised in a cosmeticcomposition as a fine dust blocking agent, and the compound comprisingan N-heterocycle is applied into skin by applying the cosmeticcomposition into skin.
 16. The method according to claim 15, wherein thefine dust blocking agent consists of a compound containing anN-heterocycle.